[dns-operations] zazinet.net Odd Behavior

[RL Vaughn]

Ran into this domain the other day when a dig to my Airport Extreme
turned out this:
dig @192.168.1.1 zazinet.net

; <<>> DiG 9.6.0-APPLE-P2 <<>> @192.168.1.1 zazinet.net
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached
##

Turns out the Airport Extreme takes about 23 seconds but eventually
responds SERVFAIL to this domain.

dig to BIND running on more powerful equipment yields SERVFAIL
fairly quickly.

## dig @149.20.64.20 zazinet.net

; <<>> DiG 9.6.0-APPLE-P2 <<>> @149.20.64.20 zazinet.net
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 49597
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;zazinet.net.			IN	A

;; Query time: 2571 msec



OTOH, dig to  a server (Microsoft) over in @dayjob gives me something
entirely unexpected:

; <<>> DiG 9.6.0-APPLE-P2 <<>> zazinet.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34948
;; flags: qr rd ra; QUERY: 1, ANSWER: 20, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;zazinet.net.         IN   A

;; ANSWER SECTION:
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.
zazinet.net.      1798   IN   CNAME   zazinet.net.

...
;; Query time: 1877 msec


I guess this is a well-known configuration no-no. 'twas news
to me.  If, however, this is real news, such behavior should
most-likely be sternly 'ex-couraged';)

Randy